What does it mean if your partner makes personal comments about you then says hes only joking and he loves you even though you feel ust at what he said?

If it is not funny to you, then he is "zinging" you. That means he is not respecting your feelings and honoring you as a person, especially when you are with other people. This is a form of bullying where he can say what he wants and thinks it doesn't matter if he excuses it as a joke. He needs to STOP that behavior NOW. If he does not see the importance of this, or discounts the harm it does to your relationship, perhaps a counselor can help transform his thinking.